Something worth knowing if you already own one investment property and you’re thinking about the next one: your existing investment property is almost certainly holding more usable equity than you realise. And that equity is the fastest, cheapest way to fund your next purchase.
Fifteen years working with Sunshine Coast investors, and this is one of the most common conversations I have. Someone bought an investment property five, six, seven years ago. The market has moved. Their loan balance has come down. And they’ve never actually sat down and worked out what they could do with what’s built up.
Here’s the practical version of that conversation.
What ‘using investment property equity’ actually means
Every property you own, whether it’s your home or an investment, builds up equity over time. Equity is the gap between what your property is worth today and what you still owe on the loan against it.
If you own a Sunshine Coast investment property currently valued at $700,000 and your loan balance is $400,000, you have $300,000 of equity in that property.
But not all of that equity is available to you. Lenders will typically let you borrow against your property up to 80% of its current value without requiring Lenders Mortgage Insurance. That’s called your usable equity, and it’s calculated as:
Property value × 0.8 minus your current loan balance = your usable equity
For the $700,000 investment property with a $400,000 loan, that maths works out as:
- $700,000 × 0.8 = $560,000
- $560,000 minus $400,000 loan balance = $160,000 of usable equity
That $160,000 becomes the deposit and acquisition costs for your next investment purchase. No cash savings required. Based on this calculation, you may have up to $160,000 in usable equity. Subject to lender approval, some or all of this could potentially be released and used towards the deposit and purchase costs for another investment property.
Depending on the purchase price, costs, lender requirements and your borrowing capacity, this may reduce – or sometimes remove – the need to contribute cash savings.
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How this is different from using your home’s equity
Most articles about using equity focus on owner-occupiers releasing equity from their family home to buy their first investment property. That’s a valid path and it’s covered in our main equity guide.
But if you’ve already got one investment property, using equity from that investment property (rather than from your home) to fund the next one is a genuinely different conversation, for three reasons.
First, the loan structure implications are different. Investment properties can be set up as stand-alone loans (each property secured only by itself) or as cross-collateralised loans (multiple properties secured together). Extracting equity from an existing investment property to fund the next one raises questions about which structure works best for your longer-term portfolio. Cross-collateralisation is often the default a bank will offer, but it’s not always the right choice.
Second, the tax treatment is different. The interest on a loan used to purchase an investment property is generally tax deductible. The interest on money you extract as equity is only tax deductible if the extracted equity itself is used for investment purposes. Mixing borrowings for personal and investment use in the same loan gets complicated fast and needs proper accountant input.
Third, some lenders treat investment property LVRs more conservatively. Where you might get to 90% LVR (with LMI) on your owner-occupier home, some lenders cap investment property LVR at 80% or 85%. That affects how much usable equity you actually have to work with.
The rule of 4: how much can you spend?
Once you know your usable equity, the fastest way to work out what you can spend on your next investment is the rule of 4.
Take your usable equity and multiply by 4. That’s your realistic investment property budget.
The maths works because your $160,000 of usable equity covers both your 20% deposit ($128,000) on a $640,000 property and the acquisition costs (stamp duty, legal fees, lender costs, roughly 5% of purchase price or another $32,000).
For different equity positions, that scales roughly like this:
- $100,000 usable equity supports around a $400,000 investment purchase
- $160,000 usable equity supports around a $640,000 investment purchase
- $220,000 usable equity supports around an $880,000 investment purchase
- $300,000 usable equity supports around a $1.2 million investment purchase
Bear in mind: this is the equity side of the equation. Whether you can actually service the additional loan is the second half of the conversation, and that depends on your income, existing commitments, and how the bank assesses the rental income from both properties. More on that below.
The step-by-step process
Assuming your equity supports the purchase you want to make and the income side stacks up, here’s how the process typically runs.
Step one is a valuation of your existing investment property. Your current lender will have valued it when you took out the loan, but that value could be years old. A fresh valuation confirms what your equity position actually is today.
Step two is deciding on your loan structure. Either you take out a separate loan against the existing property for the deposit and costs, then a fresh loan on the new property. Or you top up the existing loan and use the extra funds. Or you cross-collateralise both properties under one loan. Each has trade-offs and this is where a broker earns their keep, because a bank will only ever offer you the structure that suits them.
Step three is servicing assessment. The lender assesses whether you can afford the combined loan repayments (existing loan on property 1, new loan on property 2) based on your income, plus a percentage of the rental income from both properties (usually 70-80% is counted, allowing for vacancy and expenses).
Step four is settlement of the new property. The extracted equity funds your deposit and costs, the new loan funds the purchase, and you’re now a two-property investor.
The whole process from serious inquiry to settlement typically runs 6-10 weeks depending on lender turnaround times and how quickly the valuation comes back.
Loan structure: stand-alone or cross-collateralised?
This is the piece most investors underestimate at the time and regret later.
Cross-collateralisation is when two or more properties are secured by the same loan (or multiple loans that reference each other as security). It’s often what a bank will offer because it simplifies their assessment. The downside for you is flexibility. If you want to sell one property later, the bank has to release its security across the whole portfolio. If your circumstances change, restructuring is messy.
Stand-alone loan structure keeps each property secured only by itself. Property 1’s loan is secured against Property 1. Property 2’s loan is secured against Property 2 (and funded by the equity extracted separately from Property 1). This is more work to set up but gives you far more flexibility as your portfolio grows. Sell one property, refinance one property, or restructure one loan without touching the others.
For most Sunshine Coast investors building a small portfolio (2-3 properties over time), stand-alone structure is generally the better choice. But it depends on the specifics of your situation, and it’s exactly the kind of conversation to have with a broker before you commit to a lender’s default offer.
Tax implications: talk to your accountant
Two important points on tax, because getting this wrong can cost you thousands in deductions.
Point one: purpose of borrowing matters more than security of borrowing. The ATO cares about what borrowed money is used for, not what property it’s secured against. If you extract equity from Property 1 and use it as a deposit on Property 2 (both investments), the interest on that extracted equity is generally deductible against Property 2’s income. If you extract equity from Property 1 and use it for a family holiday or a car, the interest on that extracted equity is not deductible.
Point two: keep purposes separate. If you extract equity for mixed purposes (some for investment, some for personal), the ATO requires you to track and apportion the deductions carefully. The cleaner path is to use separate loan splits, so investment borrowings sit in their own loan and personal borrowings sit in another. This costs nothing at setup and saves significant complication at tax time.
Your accountant should be part of the loan structure conversation, not called in afterwards to work out what you did. If you don’t currently have an accountant familiar with property investment specifically, we can recommend one who works with several of our investor clients.
Three mistakes we see regularly
One: accepting the first lender’s structure without shopping around. Your existing bank will happily offer you a top-up on your current loan and call it ‘using your equity.’ That’s often the highest-cost, least-flexible option. Comparing across 60+ lenders (which is what we do) frequently finds a better rate, a better structure, or both.
Two: not factoring in rental income assumptions correctly. Lenders assess rental income differently. Some count 80%, some count 70%, some apply a fixed shading to the assessed rent. This can be the difference between the deal working and not working, especially on your second investment property where you’re carrying two loans.
Three: cross-collateralising because it’s easier at the start. This one specifically catches people out three or four years later when they want to restructure. What was easy at settlement becomes a real problem when you’re trying to sell one property or refinance one loan.
When using investment property equity makes sense (and when it doesn’t)
It makes sense when:
- You’ve held the existing investment property for at least 3-5 years and it’s grown in value
- Your income supports the additional loan repayments even if a property is briefly vacant
- You have a clear reason for the second property (rental yield in a specific area, capital growth strategy, portfolio diversification)
- You’re prepared to have the tax structure conversation with your accountant upfront
- You’ve compared loan structures across multiple lenders, not just accepted your current bank’s offer
It doesn’t make sense when:
- You’d be stretching your servicing capacity to breaking point
- The existing investment property hasn’t grown enough to have meaningful usable equity
- You’re buying because a mate said it was a good idea, not because you’ve researched the specific area and property
- You don’t have three to six months of financial buffer beyond the loan repayments
- You haven’t factored in the ongoing costs (rates, insurance, maintenance, property management, vacancy periods)
The Sunshine Coast context
Sunshine Coast property values have moved substantially over the last 5-10 years, which means most existing investors are sitting on more equity than they realise. If you bought a Buderim, Sippy Downs, or Maroochydore investment property between 2015 and 2020, your usable equity today could be 40-60% higher than when you settled.
Combined with the current interest rate environment and the specific investor-friendly lenders on our panel, this is genuinely a moment where existing Sunshine Coast investors have real options for their next move.
If you’d like to work out your specific numbers and understand what structure would work best for your situation, book a free 15-minute Home Loan Health Check on our site. We’ll run through your existing loan, your equity position, your servicing capacity, and the loan structure options that would work for you. No hard sell, no pressure. Just an honest read on what’s possible.
Frequently Asked Questions
You typically need enough usable equity to cover both the 20% deposit and the acquisition costs (around 5% of the purchase price). Using the rule of 4: multiply your usable equity by 4 to get your realistic purchase price. So $150,000 of usable equity supports around a $600,000 investment purchase.
Yes. That’s exactly what ‘using equity’ means. You’re not paying off the existing loan first, you’re borrowing against the difference between the property’s current value and the existing loan balance, capped at 80% of the property’s value.
No. In fact, using a different lender for the second loan often gives you better flexibility and pricing. The equity extraction on the first property might happen with your existing lender, but the new loan on the second property can go to whichever lender is offering the best deal for that specific purchase.
The existing property remains yours and remains an investment. What changes is the loan balance against it (which increases by the amount of equity extracted) and, depending on structure, whether it’s secured jointly with the new property or stands on its own.
Typically 6-10 weeks from serious inquiry to settlement on the new property. This includes valuation of the existing property, loan approval, contract signing on the new purchase, and settlement.
Your current lender is one of 40+ lenders in the market. If they say no, it’s not the end of the conversation. Different lenders have different appetites for investment property lending, different LVR limits, and different serviceability calculators. A broker who compares across multiple lenders can often find a yes where a single lender said no.
Meet Chris Wilson, the heart of Sunshine Coast Financial Solutions (SCFS). With over a decade of experience in finance, Chris started his journey as a broker with Aussie Home Loans in 2009. His dedication earned him the title of Rookie of the Year in 2010. By 2011, he was ready to build a business based on trust and strong partnerships.
